Driving-belt.



No. 806,687. PATBNTED 13130.5, 1905.

E. MAGALDI. DRIVING BELT.

PPPPPPPPPPPPPPPPP 30.10, 1902.

WITNESSES INVENTOR %M@% WWM PATENTED DEC. 5, 1905.

E. MAGALDI.

DRIVING BELT.

APPLICATION FILED 131:0. 10, 1902.

2 SHEETS-SHEET 2.

INVENTOR BY Q/ Y H WM WWW WITNESSES 6; w.

{\TTORNEYS /MLCK 62% 11 Nrrnn STATES PATENT onnron.

DRIVING-BELT.

Specification of Letters Patent.

Patented Dec. 5, 1905.

Application filed December 10, 1902. Serial No. 134,718.

To 67/ whom, it may concern:

Be it known that LEMILIo MAeALDI,builder, a subject of the King of Italy, residing in La Briche, St. Denis, Seine, France, have invented certain new and useful Improvements.

in Driving-Belts, of which the following is a specification.

This invention has for its object to produce an improved driving-belt that will be strong and yet flexible and economical to manufacture.

My invention consists in the special arrangement of parts set forth in the followingspecification and illustrated in the accompanying drawings, in which Figure 1 is a'face view of part of one form of my improved belt. Fig. 2 isasimilar view of a modified form of belt. Fig. 3 is a view similar to Fig. 1 ofa beltof four strips. Fig.

1 is a sectional view across said belt. Fig. 5 is a view of one of the rods. Figs. 6 and 7 are modified views of modified rods. Fig. 8

is the edge view, and Figs. 9 and 10 respectively a cross-section and a face view to illustrate the flexible possibilities of one of my improved belts.

In all the drawings except Fig. 10 I have shown the belt as composed of a great number of thongs of leather or the like bolted together to form separate and distinct strips of the belt, said strips being secured to each other, as hereinafter set forth.

In Fig. 10 the belt is composed of strips, each of one piece, and not of thongs; but the strips are secured in the same manner to each other as are the thongs to be now described.

The thongs of each strip are built up with their faces in contact and their edges composing what is to be the face of the belt in any convenient mannersuch, for instance, as that described in my United States Patent No. 680,159, dated August 6, 1901. In each belt at least three strips are assembled adjacent to each other in the same plane, and bolts or rods of the length of two stripsaare passed through such two strips alternately from opposite sides of the belt. In the example shown in Fig. 1 the bolts or rods are each a little longer than two-thirds of the belt shown, and each strip is separated from its neighbor by a bushing b on the bolt, While in Fig. 2 the bushing is omitted, giving the belt the outward appearance of being one mass of thongs, but maintaining the functions and the constructional features of the three or more strip belts. In both these forms the rods a, which extend through the two right-hand strips, are

disposed throughout the belt in linesparallel to the rods of the left-hand two strips and on both sides thereof. This makes the central strip united to both outside strips, while each outside strip is merely connected to the other outside strip through the middle strip. Each outside strip may have in addition to the rods (0 short rods a of the width of that strip and serving as an additional bond for the thongs of each strip, preferably placed midway between the longer rods (0 of the same side of the belt, bringing them substantially opposite the rods (0 of the opposite side.

In the modification Figs. 3 and 4 I have shown a belt composed of four independent strips. The two central strips are secured together by rods a passing through both, while each outer strip is secured to the adjacent strip of the two central ones. Each outer strip may have the additional rod a passed through it midway between the rods a. This gives the following quincunx disposition of the rods a, two rods in line each connecting two outer strips, with one rod connecting the two inner strips above them, and two rods immediately above the single rod, each connecting two outer strips.

The rods 0 may have bushings b loosely slipped over them, Fig. 5, or they may be formed integral therewith, Fig. 7, in both of which cases they may be of metal or they may be pieces of leather or the like, as shown in Fig. 6.

I am aware that it has been proposed to fasten rope-driving strands together at intervals, producing a belt in which every strand is movable with relation to the next; but I do not claim that as my invention. The belts of my invention are flexible as a whole, but without perceptible flexure at any one portion more than another. A pull on one strip of my belt will be evenly distributed throughout all. All these features are secured by firmly bolting the strips in alternating positions, as hereinbefore set forth, by placing the bolts so closely parallel to each other and by rigidly securing them in place, as shown in the drawings.

I claim as my invention- 1. A flexible belt having a plane surface, composed of a number of leather strips securely bolted together so that in all positions the strips will be parallel, a bolt passing at right angles through a pair of said strips only, a parallel bolt closely adjacent thereto pass- IIO ing through only one of the aforesaid pair of strips, and, in addition through only one other of the adjacent strips and so on throughout the belt, and so firmly bolted that a pull on i one strip of the belt Will be distributed to all angles to the strips, the bolts of one roW binding only the adjacent strips of the pairs bolted by the other roW and said rows of bolts alternating throughout the belt.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EMILIO MAGALDI.

Witnesses:

GUST-AVE DUMONI, EDWARD P. MACLEAN. 

